title: Efficient transmission of crossing dielectric slot waveguides.
abstract: Transmission properties of two crossing dielectric slot waveguides (Si-Air-Si) are investigated using the finite difference in time domain method. Results show that the low transmission of this system mainly results from the reflection and radiation loss rather than the crosstalk. Using a simple method of filling up the crossing slots locally, the reflection, radiation losses and crosstalk are all greatly suppressed. With moderate parameters in this paper, the transmission efficient increases from 35.0% to more than 97% in a wide range of wavelength around 1.55 mm. The results and method presented in this paper may be very useful in the application of slot waveguide in micro and nano photonics.
authors.affiliation: Physics Department, Northeast Forestry University, Harbin, China.
authors.forename: Runzhou
authors.initials: R
authors.lastname: Su
authors.forename: Donghua
authors.initials: D
authors.lastname: Tang
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Ding
authors.forename: Lixue
authors.initials: L
authors.lastname: Chen
authors.forename: Zhongxiang
authors.initials: Z
authors.lastname: Zhou
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D013685:Telecommunications / Q000295:instrumentation*